/*-
 * Copyright (c) 2008-2012, Oleg Estekhin
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the distribution.
 *  * Neither the names of the copyright holders nor the names of their
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */

package com.google.code.ebmlviewer.io;

import java.io.IOException;

/** Thrown to indicate the I/O exception. */
public class EbmlIoException extends IOException {

    private final long position;


    public EbmlIoException() {
        position = -1L;
    }

    public EbmlIoException( String message ) {
        super( message );
        position = -1L;
    }

    public EbmlIoException( String message, Throwable cause ) {
        super( message, cause );
        position = -1L;
    }

    public EbmlIoException( Throwable cause ) {
        super( cause );
        position = -1L;
    }


    public EbmlIoException( long position ) {
        this.position = position;
    }

    public EbmlIoException( long position, String message ) {
        super( message );
        this.position = position;
    }

    public EbmlIoException( long position, String message, Throwable cause ) {
        super( message, cause );
        this.position = position;
    }

    public EbmlIoException( long position, Throwable cause ) {
        super( cause );
        this.position = position;
    }


    @Override
    public String getMessage() {
        StringBuilder buffer = new StringBuilder();
        String message = super.getMessage();
        if ( message != null ) {
            buffer.append( message );
        }
        if ( position >= 0L ) {
            if ( buffer.length() > 0 ) {
                buffer.append( ' ' );
            }
            buffer.append( "(file position #" ).append( position ).append( ')' );
        }
        return buffer.length() > 0 ? buffer.toString() : null;
    }

}
